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How is rainfall measured?

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BindaJD
How is rainfall measured?

1. Rainfall is measured with a rain gauge.

 

2. Rain gauges are more advanced measuring devices that automatically generate a record of rainfall measurements. The main tool used by meteorology and hydrology to measure rainfall is the tipping bucket rain sensor. This type of measuring device will receive the rainfall into a small bucket, after a certain number of automatically pour, and at the same time form the corresponding rainfall record. Meteorology uses a 0 point millimetre tipping bucket rain sensor, while hydrology uses a 5 point millimetre one.

 

3. From a meteorological point of view, rainfall usually refers to the amount of water condensed in the air and falling to the ground, but dew, frost, hail, snow, etc., condensation is not included. The depth of rain that falls on a horizontal surface within a certain period of time, without seepage, evaporation or loss. Measured with a rain gauge. Measured at 6-hourly intervals by weather stations in the presence of precipitation. Averaging the annual precipitation over many years at a place is called the average annual rainfall for that place.

 

4. Rainfall is an important source of surface water resources, which is related to people's life and development, observing meteorology is necessary, the size of rainfall is an important basis for hydrology, agriculture and other fields to make the next decision, the quality and accuracy of the tipping bucket rain gauge is related to the direction of decision making in hydrology, agriculture, forestry and other fields.

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